Bug 297155

Application: kmix (4)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.2.0-21-generic x86_64
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
KMix crash every time for me when I do PulseAudio restart (by "pulseaudio -k" with enabled automatic respawn).

The crash can be reproduced every time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f85d09c3780 (LWP 4509))]

Thread 3 (Thread 0x7f85b0615700 (LWP 4510)):
#0  0x00007f85c6bfaf69 in __pthread_mutex_lock (mutex=0x7f85a8000a60) at pthread_mutex_lock.c:92
#1  0x00007f85c60cd571 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f85c6091ef5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f85c6092124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f85cd00da96 in QEventDispatcherGlib::processEvents (this=0x7f85a80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f85ccfdd2f2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f85ccfdd547 in QEventLoop::exec (this=0x7f85b0614dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f85ccedcf97 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f85ccfbd06f in QInotifyFileSystemWatcherEngine::run (this=0x19a8ec0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f85ccedffbb in QThreadPrivate::start (arg=0x19a8ec0) at thread/qthread_unix.cpp:298
#10 0x00007f85c6bf8e9a in start_thread (arg=0x7f85b0615700) at pthread_create.c:308
#11 0x00007f85d02934bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f85afc09700 (LWP 4511)):
#0  0x00007f85c6bfc05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7f859c000a60) at pthread_mutex_unlock.c:290
#2  0x00007f85c60cd5a1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f85c6091fea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f85c6092124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f85cd00da96 in QEventDispatcherGlib::processEvents (this=0x7f859c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f85ccfdd2f2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f85ccfdd547 in QEventLoop::exec (this=0x7f85afc08dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f85ccedcf97 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f85ccfbd06f in QInotifyFileSystemWatcherEngine::run (this=0x17c7850) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f85ccedffbb in QThreadPrivate::start (arg=0x17c7850) at thread/qthread_unix.cpp:298
#11 0x00007f85c6bf8e9a in start_thread (arg=0x7f85afc09700) at pthread_create.c:308
#12 0x00007f85d02934bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f85d09c3780 (LWP 4509)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f85d05b3e26 in MDWSlider::update (this=0x1a680a0) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007f85d05af64b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007f85ccff28f1 in QMetaObject::activate (sender=0x1801b90, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007f85ccff28f1 in QMetaObject::activate (sender=0x19e16f0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007f85d0588b0c in Mixer_Backend::readSetFromHW (this=0x19e16f0) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007f85d0598df5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007f85ce970944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007f85c65b0693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007f85c65b0a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007f85ce966bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007f85c65b52a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007f85ce754ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007f85c6091c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f85c6092060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f85c6092124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f85cd00da2f in QEventDispatcherGlib::processEvents (this=0x15eead0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f85cdcf8b1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f85ccfdd2f2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f85ccfdd547 in QEventLoop::exec (this=0x7fff3cd1f7f0, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f85ccfe25d7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007f85d05a03e2 in kdemain (argc=1, argv=0x7fff3cd1fd78) at ../../kmix/apps/main.cpp:76
#28 0x00007f85d01c276d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff3cd1fd78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff3cd1fd68) at libc-start.c:226
#29 0x0000000000400661 in _start ()

Possible duplicates by query: bug 297125, bug 297096, bug 297087, bug 297077, bug 297013.

Reported using DrKonqi